I removed the P/S pump on my coupe last night to look into resealing or replacing, as the front seal has been leaking. My question is about the auto leveling presure hose connection, the banjo bolt connection. It had only one copper washer on it; there was no washer between the hose fitting and the pump. The EPC picture shows this same set-up, but other banjo bolt connections I've seen use a washer on both sides of the fitting. The connection didn't appear to be leaking, but should there be two washers?

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1983 380SL
1995 C280
1995 S500 coupe
1990 Mazda Miata
2004 Suzuki Hayabusa